Arrangement for painting



Oct. 1.3, 1942. F. E. DAHLSTRM ARRANGEMENT FOR PAINTING l Filed Nov. 8, .1940

Patentes oa. 13,1942 y 2.29am l y AnaANGmNT Foa rami-ma l Frida-Edvin Dahlstrm, Grass, Finland, assigner to Lennart' Wilklund,

Hekingforglillllnd pacman ummm-s, im, serial Nb. 364,9:4

scrum. (ci. iii-sas) l r bearing I, a telt-washer I between metal sheaves 'The invention directed to an' improvement for painting large surfaces to displace the usual f brush when painting walls. roofs, doorsvehicles. etc. It is suitable as well for enamel and oilcolours-as for water-colours and, moreover, it can be employed for washing out old glue-water colours and removing' old wall papers.

According to the invention lthe implementis in the form of a trundle, mounted for rotation on an axle and covered with soft and solid material, e. s plush.l The trundle is shaped so that an inclined form of the covering is achieved. the middle of the trundle having a greater diam- `eter than the ends. The diameter of the ends differ one from the other. l5l

.v Contrary to the trundles of uniform diameter` or equally reduced toward both'their ends, it is important that the ends of the trundle, which narrow relative to the center, and towards which end the colour tends to collect while painting diner in diameter so that one is smaller than the other to present the 'advantage where:

1. Joint-edges are avoided, 2. The trundle can much more easily be directed in desired direction, l '3. 'Uneven surfaces are better painted, since the trundle narrows down toward its ends, and 4. It'is easier to remove and replace the cover;

A special, rectangular- `painters pail. the breadth of which has to be larger than the trundles length, is to be used for dipping the trundle into the colour. This pail is chleily made o! plates and when in use is arranged so that ythe bottom of the bin is inclined.

In describing the detalls of the invention reference is made to the attached drawing, on which the same reference numbers point to the same or corresponding parts ofthe various gures which represent: l l Fig. 1 is a longitudinal section o! thetrundle arrangement, Fig. 2 a cross section ot the trundle.

In the drawing number I represents alternatively a trundle or tube, which is mounted-on two bearings I andi, prefebly ball-bearings,

at either end of vthe trundle, and support an axle 2. These ball-bearings enable the` trundle to rotate at the slightest touch on the surface to be painted. The bearings` can be arranged inside the tube in any usual way, e; g., orumpling. On the outside of bearings I a stutllng ring 5 is arranged, which, by a dog'bolt,is ilxed on axle 2 and between which and. the bearing a feltwasher l is put between two ymetal sheaves. A metal sheave J is placed between washer l and bearing 4. There is also a metal sheave 8 at 0 but is preferably closed vso that a A of the tube.

and an uneven anda split-pin Ill outside the outer one ot these sheaves, displaced. The felt-washers 6 and 9 protect the bearings, prevent the colour` trom entering them when dipping the trundle, and make it possible to keep it inthe water without letting the water Set inside the trundle.

The trundle'isarranged so, that the one'end of axle 2 does not slip out of the trundle, but holds the ball-bearing 3 inside the tube' at a small distance from its end. This arrangement enables the trundle to reach more easily narrow spots when painting recesses, corners or surfaces, e. g., behind radiators. Outside trundle I the axle is formed asshown. A connecting sleeve II is attached to the handle, threaded to receive -a shank I2, which can be made of one or several threadedly connected parts to lengthen the shank according to requirement.

The trundle or tube I has the largest diameter in or chiefly at the longitudinalfcenter. Toward each end it narrows somewhat, and in a still greater degree towards end b. The dinerence of diameters need not necessarily exceed 2-6 mm. A feltfcovering I3 Ais pulled over the trundle and a second cover I4 of plush or a plushlike tissue supplied over the felt. This cover I4 is sewn together von both sides and is fixed to the felt cover. Both covers together form the so-called stocking. Either cover or, at any rate, the outerv one I4 exceeds the trundles length so much that the ends of the covers can lap the ends of the trundle. rWhere the axle 35 enters end a of thetrundle the stocking is drawn together, e. g., by means of a wire-ribbon I5 sewn in between the covers, which retains the fstocking on the trundle. The other end of the stocking can be formed in a round piece of felt, 4leather or some other material IB is sewn in, approximately matching the inner diameter Elastics of rubber can, also be used at the ends of the stocklng." Since end a of the trundle, where the shank joins the axle, Vis pressed more strongly against the base than the free" end b, the colour on trundles of uniform diameter is pressed towards the ends surfac'e with joint-edges results. Since the improved -trundle continually narrows toward the ends. chieily from the -middle towards end b, in a slightly greater degree than toward end a, lit results that the colour is equally distributed on the painted surface, even though similar way of course,

there is a difference of pressure in the various parts of the trundle against the base'.

Instead of narrowing down the trundle itself towards both its ends, the same eiect can be achieved by shaping the cover itself within its own thickness Iso that its inside surface can be fitted to a cylindrical trundle.

Having thus described my invention I declare that what I claim is:

1. A trundle for applying paint and the like including an 'elongated tubular element, a ilexible covering therefor, the diameter of the trundle as a whole being greatest at its axial central portion and tapering toward the ends, and a handle on which the tubular/ element is rotatably supported.

2. A trundle for applying paint and the like, including an elongated tubular element, a exible covering therefor, the diameter of the trundle as a whole being greatest at its axial central portion and tapering toward the ends, the taper toward one end being in excess of the taper toward the other end, and a handle on which the tubular element is rotatably supported.

3. A trundle for applying paint and the like, including an elongated tubular element, a exible covering therefor, the diameter of the trundle as a whole being greatest at its axial central portion and tapering toward the ends, the taper toward one end being in excess of the taper toward the other end, and a handle on which the tubular element is rotatably supported, the handle extending lengthwise within and rotatably supporting the element, the handle extending beyond the element end of greatest diameter.

4. A construction as defined in claim 1, wherein the described taper is formed in the peripheral surface of the element.

5. A construction as defined in claim l wherein the exible covering includes a felt layer next the eleinent and an outer layer of plush-like maerial.

mms: EDVIN DAms'rRM. 

